WGUS63 KFSD 102046
FFAFSD

FLOOD WATCH
NATIONAL WEATHER SERVICE SIOUX FALLS SD
346 PM CDT SAT MAY 10 2008

.RAINFALL WILL GRADUALLY TAPER OFF THIS EVENING ACROSS SOUTHEAST
SOUTH DAKOTA...SOUTHEAST MINNESOTA...NORTHWEST IOWA...AND EXTREME
NORTHEAST NEBRASKA...AS A VIGOROUS STORM SYSTEM STARTS TO PULL
AWAY FROM THE REGION.  AT THIS TIME...THE POTENTIAL FOR FLOODING
IS STILL UNCERTAIN AS TO WHETHER THERE WILL BE ENOUGH RAINFALL TO
RUN OFF AND PUSH THE LITTLE SIOUX RIVER AND ITS TRIBUTARIES INTO
MINOR FLOOD EARLY TO MID WEEK NEXT WEEK.

IAZ001-012-020-SDZ067-071-102200-
/O.CAN.KFSD.FA.A.0001.000000T0000Z-080511T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LYON-SIOUX-PLYMOUTH-LINCOLN-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...LE MARS...CANTON...
LENNOX...TEA...HARRISBURG...NORTH SIOUX CITY...BERESFORD...
ELK POINT...ALCESTER...JEFFERSON
346 PM CDT SAT MAY 10 2008

...FLOOD WATCH IS CANCELLED...

THE FLOOD WATCH FOR PORTIONS OF NORTHWEST IOWA AND SOUTHEAST
SOUTH DAKOTA HAS BEEN CANCELLED. WIDESPREAD ACCUMULATING RAINFALL
IS EXPECTED TO DROP OFF RAPIDLY LATE AFTERNOON INTO EARLY EVENING.
WITH STORM TOTAL RAINFALL EXPECTED TO BE MAINLY A HALF TO THREE
QUARTERS OF AN INCH...THE RISE IN RIVER LEVELS IS EXPECTED TO
REMAIN WITHIN BANK ALONG THE LOWER BIG SIOUX AND ITS TRIBUTARIES.

$$

IAZ014-021-022-032-110500-
/O.CON.KFSD.FA.A.0001.000000T0000Z-080511T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE...
IDA GROVE...HOLSTEIN...BATTLE CREEK
346 PM CDT SAT MAY 10 2008

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

THE FLOOD WATCH CONTINUES FOR

* A PORTION OF NORTHWEST IOWA...INCLUDING THE FOLLOWING AREAS...
  BUENA VISTA...CHEROKEE...CLAY AND IDA.

* THROUGH SUNDAY AFTERNOON

* WET CONDITIONS...IN COMBINATION WITH PORTIONS OF THE LITTLE
  SIOUX RIVER NEAR BANKFULL...WILL CREATE THE POTENTIAL FOR MINOR
  FLOODING WITH THE INGOING RAINFALL EVENT. WITH BASIN AVERAGE
  RAINFALL AMOUNTS EXPECTED TO STAY AROUND A HALF INCH TO TWO
  THIRDS OF AN INCH...THIS MAY BRING THE LITTLE SIOUX RIVER TO
  MINOR LOWLAND FLOODING. ACCUMULATING RAINFALL WILL BEGIN TO
  RAPIDLY DIMINISH LATER SATURDAY EVENING.

* MINOR LOWLAND FLOODING OF AGRICULTURAL AND RECREATIONAL AREAS
  ALONG THE LITTLE SIOUX FROM NEAR SPENCER DOWNSTREAM TO
  CHEROKEE...ALONG WITH SOME MINOR LOWLAND FLOODING OF SMALLER
  TRIBUTARIES AND STREAMS IS POSSIBLE.

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

$$

CHAPMAN